分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Elasmobranchii
板鰓亞綱 (鯊魚與魟魚) (sharks and rays) >
Myliobatiformes (Stingrays)
鰩目 (Stingrays) >
Dasyatidae (Stingrays)
土魟科 (Stingrays) > Dasyatinae
Etymology:
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋 居於水底的; 深度上下限 10 - 20 m (Ref. 114953). 亞熱帶的
Northwest Pacific: restricted to southern Japan.
西北太平洋: 伊豆半島，日本的太平洋海岸。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 41.8 cm WD 雄魚/尚未辨別雌雄; (Ref. 34976)
Occurs in shallow coastal waters (Ref. 7445). Almost with certainty to occur deeper than 20 m (Ref. 114953). Ovoviviparous (Ref. 50449).
出現於沿岸淺水區。 (參考文獻 7445) 卵胎生的.(參考文獻 50449)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
Exhibit ovoviparity (aplacental viviparity), with embryos feeding initially on yolk, then receiving additional nourishment from the mother by indirect absorption of uterine fluid enriched with mucus, fat or protein through specialised structures (Ref. 50449). Distinct pairing with embrace (Ref. 205).西北太平洋: 伊豆半島，日本的太平洋海岸。
Last, P.R., W.T. White, M.R. de Carvalho, B. Séret, M.F.W. Stehmann and G.J.P. Naylor, 2016. Rays of the world. CSIRO Publishing, Comstock Publishing Associates. i-ix + 1-790. (Ref. 114953)
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Estimates based on models
Preferred temperature (Ref.
123201): 17.2 - 24.8, mean 21.3 °C (based on 62 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5010 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00646 (0.00265 - 0.01571), b=3.06 (2.86 - 3.26), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.7 ±0.5 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 低的, 最小族群倍增時間4.5 - 14 年 (Assuming fecundity<100).
Fishing Vulnerability (Ref.
59153): Very high vulnerability (90 of 100).
